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Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 1.00
```
1.0 = *:*, product of:
  1.0 = boost
  1.0 = queryNorm
```
Rijsbergen, C.J. van: ¬A fast hierarchic clustering algorithm (1970) 1.00
```
1.0 = *:*, product of:
  1.0 = boost
  1.0 = queryNorm
```
Sembok, T.M.T.; Rijsbergen, C.J. van: IMAGING: a relevant feedback retrieval with nearest neighbour clusters (1994) 1.00
```
1.0 = *:*, product of:
  1.0 = boost
  1.0 = queryNorm
```